131121302540554 has 16 divisors (see below), whose sum is σ = 196793775247392. Its totient is φ = 65523380933808.

The previous prime is 131121302540533. The next prime is 131121302540597. The reversal of 131121302540554 is 455045203121131.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75545677 + ... + 77261839.

It is an arithmetic number, because the mean of its divisors is an integer number (12299610952962).

Almost surely, 2^{131121302540554} is an apocalyptic number.

131121302540554 is a deficient number, since it is larger than the sum of its proper divisors (65672472706838).

131121302540554 is a wasteful number, since it uses less digits than its factorization.

131121302540554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1737861.

The product of its (nonzero) digits is 72000, while the sum is 37.

Adding to 131121302540554 its reverse (455045203121131), we get a palindrome (586166505661685).

The spelling of 131121302540554 in words is "one hundred thirty-one trillion, one hundred twenty-one billion, three hundred two million, five hundred forty thousand, five hundred fifty-four".